<!DOCTYPE html>

<html>
    <head>
        <meta charset="UTF-8">
        <title>层叠</title>
        <style type="text/css">
            h3 {
                text-align: center;
            }
            .wrapper{
                width: 80vw;
                border: 1px solid blue;
                margin: auto;
            }

            .wrapper>p {
                color: green;
                text-align: center;
                font: 20px/1em 宋体;
            }

            p:first-child {
                color: brown;
                text-decoration: line-through;
            }
        </style>
    </head>

    <body>
        <h3>层叠(Cascade)</h3>
        <div class="wrapper">
            <p>落霞与孤鹜齐飞，秋水共长天一色</p>
            <p>卧槽，好多的鸟，哎吆，卧槽，这鸟真他妈多</p>
        </div>
    </body>
</html>